pitts



tnttrh tatrs atrnt @ffifg SETH G. PITTS, OF LlilOl\lll\IS'l`ERJ MASSACHUSETTS, ASSIGNOR TO HIMSELF AND WILFORD L. PALMER, OF SAMEl PLAGE.

Letters Patent No. 82,243, dated September 1,5, 1868.

ilgt .Stlgemh tristan trilt this Etnias 'atent imh making part nt the samt.

TO ALL PERSONS TO WHOM THESE PRESENTS MAY COME:

Be it known that I, Seru G. Irrrs, of Leominster, of the 'county of Worcester, and Stateof Massachusetts,

have invented a new and useful Machine for Making Buttons, or other 'articles of like character, or for boring plates; and do hereby declare the same to be fully described in the following specification, and represented in the accompanying drawings, ot' which:-

Fiure lis a top view,

Figure 2 a longitudinal section, and

Figure 3 a transverse section ofit.

In' such drawings, A A A, D B B denote series of mandrels, arranged parallel to one another, and with their axes in a horizontal plane.

The axis of each mandrel of one series is in line with that of aimandrel of the other series.

These mandrels are supported in four standards, a a a a, erected on the top of a table, C.

Each mandrel slides freely through or irrits bearings, and has a driving-pulley, Z), fixed on it.

Furthermore, the mandrels of each series, at their outer ends, are so connected to one of two cross-bars, D D, as to be movable simultaneously and lengthwise thereby, and still be capable of being revolved by belts going about their driving-pulleys.

The two bars D D are supported by arms, b b', projecting upward from Atwo horizontal shafts, E E, from which other arms,.F F, are extended towards and against two cams G G, fixed on another or central shaft, H, the whole being arranged as represented.

The said shaft H has a driving-pulley, I, fixed on one end of it, for the purpose of putting it in revolution.

Over the space between the two series of mandrels are two rails' or ways, K K, which are arranged a short distance apart, and with their upper edges' inclined atan acute angle to the plane of the axes ofthe two series of mandrels.

A long toothed rack, L, rests and slides on one of the said-rails, there being a spring-clamp or plate, e, axed to one side of the said rack.`

The purpose of the' said plate or clamp is to hold a sheet of horn, or other material, in connection with the rack. i Y

Below or underneath the two rails or wings are two clamp-plates or clamps, M M, which are providedwith holes for the passage ofthe mandrels through them.

These clamp-plates are supported by levers, N N, pivoted to the table, andhaving their lower' arms restingy against cams O O O O, fixed on the shaft H. l

Springs, P P, are applied to the lower arms of the levers for keeping them in contact with the peripheries ofthe cams.

Furthermore, there is another cam, R., xed on the shaft II, the said cam being to operate a lever, S, pivoted to the table, and provided at its upper end with a click or pawl, T, to engage with theraek L, the whole being arranged in manner as represented.

If, now, we suppose each of the mandrels of one series to be provided on its inner end with a cutter or cutters for forming one side of a button, and if we also suppose each of themandrels of the other series to have on its inner end a cutter or cutters to form the other side ef'a button, and to cut the button out ofthe sheet'of horn, the machine will be complete for making buttons or disks, and when at work, each pair of mandrels inline .with each other will be made to successively eut through the'stock in a range parallelto the rack.

Preparatory to each advance movement ot' the sheet ot` horn or steel, the clamps move apart, and after such movement may have been eifected, they close upon the sheet, so as to hold it firmly while it is being cut by the cutters'of the mandrels. One series of mandrels in revolution is next moved toward the sheet, so-as to form one side of the buttons or disks. Next, these mandrels are vibrated, and the other set brought up, so as to form the other sides of the buttons, and cut such buttons or disks from the plate.

With one set of mandrels only, tbe machine can be used for boring plates.

I claim the combination of aswell as the arrangement of one or two sets of mandrels A B, the toothed rack or carrier L, and its supporting-rail K, and .the `clalmps M M, tbe whole being provided'with mechanism for operating the rack, mandrels, and clamps,'substa.ntiallv as described.

'3. G. PITTS.

Witnesses:

R. H. EDDY,` F. P. HA'LE, Jr. A 

